Buildup from shampoo or hairspray can also cause scalp acne. These bumps can be painful, itchy, red, or inflamed. They may also bleed. Treating scalp acne sometimes starts with switching up your ...
Scalp folliculitis is a skin condition ... Folliculitis is also sometimes called the following: Small, itchy bumps: These may be red, white, or yellow and can appear around the hair follicles.